sparkplugs have 30,000 miles. Car hesitates, (like misfire) at certain rpm in drive. Avg. miles per gallon dropped also.
2006-12-26 05:20:12 · 4 answers · asked by Anonymous in Cars & Transportation ➔ Car Makes ➔ Pontiac
your car is OBDII the check engine light should come on if a missfire deteced. this might help in diagnoses if the light is on.
2006-12-26 05:29:02 · answer #1 · answered by Kristine H 2 · 0⤊ 0⤋
Quick way to check the wires - use a portable am radio. If you hear static when the car is running the wires need to be replaced (this, however, is not fool-proof). Best bets, change plugs and wires (plugs need it anyway), replace PCV valve, change air filter if it has more than 25,000 miles on it. Test for vacuum leaks - you could have a cracked vacuum hose that could cause that symptom as well.
2006-12-26 05:28:10 · answer #2 · answered by smgray99 7 · 0⤊ 0⤋
My friend had the same problem with his 2002 Chevy Camaro V6 automatic too. He took it to a dealership and said that they replaced some sort of chip. I don't exactly remember which chip it was though.
2006-12-26 06:15:29 · answer #3 · answered by ahughejazz24@sbcglobal.net 1 · 0⤊ 0⤋
try plugs and wires first - if you had it detailed recently you might have got water on them
2006-12-26 05:21:56 · answer #4 · answered by Anonymous · 0⤊ 0⤋